extern int sgemv_(char *trans, integer *m, integer *n, real *alpha, real *a, integer *lda, real *x, integer *incx, real *beta, real *y, integer *incy, ftnlen trans_len);
/*:ref: lsame_ 12 4 13 13 124 124 */
/*:ref: xerbla_ 14 3 13 4 124 */
